Abstract
Abstract The present study aimed to estimate the diversity, abundance, and habitat utilization patterns of medium and large-sized mammals in the Debre-libanos Monastery forest, Ethiopia. The survey was conducted from December 2019 to October 2020, considering the wet and dry seasons. A stratified sampling design was applied, dividing the study area into four habitat types based on the vegetation composition and cover (i.e., Natural forest, Plantation, Cliff/Rocky, and Settlement). Both direct and indirect observations were used along the transect lines to identify mammal species. Indirect evidence included tracks, dens, droppings, hair, and other signs. Nineteen transect lines of 0.5‒1 km in length were established. The distance between transects was 200 m to avoid double counting. A total of 11 medium and large-sized mammal species belonging to 6 orders and eight families were identified during the study period. Carnivores and primates were the dominant orders, accounting for 36.4% and 27.3% of the species, respectively. Among primates, the Gelada baboon (Theropithecus gelada) is endemic to Ethiopia. The highest diversity of medium and large-sized mammals was observed in the natural forest during the dry season (Hʹ = 1.44), and the lowest diversity was recorded in the settlement during the dry season (Hʹ = 0.77). The abundance of different mammal species varied significantly from an even distribution (χ2 = 7344.9, df = 10, p < 0.001) and was not consistent among the four habitat types (Species × Habitat type interaction; Fisher-Freeeman-Halton exact test; χ2 = 649.3, df = 30, p < 0.001). High similarity in species composition was observed between the natural forest and plantation (SI = 0.94), whereas low similarity occurred between the cliff/rocky and settlement habitat types (SI = 0.18). Gelada baboon abundance was high; therefore, communities and government bodies must pay attention and conserve this species in the area.
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